Okay so I picked up a tank with a bunch of live rock but the person I got it from put copper in it. I tossed the sand, put new rods water in it put new filter and cuprisorb in the hob filter.
My goal is the get the rocks usable again.
I tested the water yesterday with a Hanna copper tester and it was 0.00.
I'm wondering what the best way to go about testing would be? Should I turn off the filter for a week and then test to see if the rocks are slowly still leaching out copper?
I'm assuming that I got a 0.00 reading because the cuprisorb is picking up all the copper being leached so I'm not getting a accurate answer on if there is copper still.

My goal is the get the rocks usable again.
I tested the water yesterday with a Hanna copper tester and it was 0.00.
I'm wondering what the best way to go about testing would be? Should I turn off the filter for a week and then test to see if the rocks are slowly still leaching out copper?
I'm assuming that I got a 0.00 reading because the cuprisorb is picking up all the copper being leached so I'm not getting a accurate answer on if there is copper still.
